verb

diddle

DID-uhl/ˈdɪdl/

to cheat someone or manipulate something dishonestly

The seller diddles the customer by secretly keeping one coin.

A seller slyly keeps back one coin while handing a customer his change, illustrating a small, deliberate swindle.
Etymology

The source treats diddle as a suggestive sound around which several more or less unrelated meanings gathered. The cheating sense is recorded as slang, without an established root explaining it.

More examples

  • They diddled us out of half our deposit.
  • Someone has diddled the figures to hide the missing money.
  • That mechanic diddles customers by charging for repairs he never makes.

Forms

diddle · diddles · diddled · diddling

swindler noun — someone who cheats others out of money

Similar words

cheat
Broadly means gaining an unfair advantage through dishonest behavior.
swindle
Usually means tricking someone out of money or property.
doctor
Means altering records or objects dishonestly to mislead others.